Fix for “This could be due to CredSSP encryption oracle remediation”

Table of Contents

Symptoms

When you try to connect to a remote Windows server using Remote Desktop Connection Client after May 8, 2018 you get this error:

CredSSP encryption oracle remediation error window

[Window Title]
Remote Desktop Connection
[Content]
An authentication error has occurred.
The function requested is not supported
Remote computer: XXX.XXX.XXX.XXX
This could be due to CredSSP encryption oracle remediation.
For more information, see https://go.microsoft.com/fwlink/?linkid=866660